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   <title>OpenSLP Programmers Guide - SLPSrvURLCallback</title>
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<h2>SLPSrvURLCallback<br />
<span id="breadcrumbs"><a href="index.html">OpenSLP Programmer's Guide</a> &raquo; Service Location Functions &raquo; <a href="SLPSrvURLCallback.html">SLPSrvURLCallback</a></span></h2>

<h3>Declaration</h3>

<pre>#include &lt;slp.h&gt;

typedef <a href="SLPTypes.html#SLPBoolean">SLPBoolean</a> SLPSrvURLCallback(
    <a href="SLPTypes.html#SLPHandle">SLPHandle</a>      <a href="#hslp">hslp</a>,
    const char*    <a href="#srvurl">srvurl</a>,
    unsigned short <a href="#lifetime">lifetime</a>,
    <a href="SLPTypes.html#SLPError">SLPError</a>       <a href="#errcode">errcode</a>,
    void*          <a href="#cookie">cookie</a>);
</pre>

<h3>Description</h3>

<p>The <tt>SLPSrvURLCallback</tt> type is the type of the 
callback function parameter to <tt>SLPFindSrvs()</tt> 
function. If the <tt>hslp</tt> handle parameter was opened 
asynchronously, the results returned through the callback 
MAY be uncollated.</p>

<h3>Parameters</h3>

<table BORDER CELLPADDING=5 NOSAVE >
<tr VALIGN=TOP NOSAVE>
<td NOSAVE><a NAME="hslp"></a><tt>hslp</tt></td>

<td NOSAVE>The language specific <tt>SLPHandle</tt> on which to register the 
service.</td>
</tr>

<tr VALIGN=TOP NOSAVE>
<td NOSAVE><a NAME="srvurl"></a><tt>srvurl</tt></td>

<td>Pointer to the SLP Service URL of the requested service.&nbsp; See
<a href="Syntax.html">Syntax</a>
for more information about SLP Service URLs</td>
</tr>

<tr VALIGN=TOP NOSAVE>
<td NOSAVE><a NAME="lifetime"></a><tt>lifetime</tt></td>

<td NOSAVE>The lifetime of the service in seconds</td>
</tr>

<tr VALIGN=TOP NOSAVE>
<td><a NAME="errcode"></a><tt>errcode</tt></td>

<td NOSAVE>An error code indicating if an error occurred during the operation.&nbsp; 
The callback should check this error code before processing the parameters.&nbsp;</td>
</tr>

<tr VALIGN=TOP NOSAVE>
<td NOSAVE><a NAME="cookie"></a><tt>cookie</tt></td>

<td NOSAVE>The same cookie that was passed as a parameter to the <tt>
SLPFindSrvs()</tt>
call</td>
</tr>
</table>

<h3>Returns</h3>

<p>The callback should return <tt>SLP_TRUE</tt> if more data is 
desired.&nbsp; The callback may continue to return <tt>SLP_TRUE</tt> 
until it is called with an errcode of <tt>SLP_LAST_CALL</tt>.&nbsp; 
If no more data is requested the callback should return <tt>
SLP_FALSE</tt>.</p>

<h3>Status</h3>

<table CELLPADDING=5 NOSAVE >
<tr VALIGN=TOP NOSAVE>
<td NOSAVE>OpenSLP 0.6.0</td>

<td NOSAVE>SLPSrvURLCallback functions are called as specified by RFC 2614</td>
</tr>
</table>

<br />
<h3>See Also</h3>

<p><a href="Syntax.html">Syntax</a>,
<a href="Callbacks.html">Callbacks</a>,
<a href="SLPFindSrvs.html">SLPFindSrvs()</a></p>
					
<p id="breadcrumbs0">Prepared by: <a href="http://www.calderasystems.com">Caldera Systems Inc</a><br />
Maintained by: <a href="http://www.openslp.org/">openslp.org</a></p>

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